EFFECTS OF BAFFLE IN AN INTEGRATING SPHERE ON THE TOTAL LUMINOUS FLUX MEASUREMENT OF A LINEAR SHAPE LAMP
Kamol Wasapinyokul, Santhad Chuwongin, Soontorn Chanyawadee, Rojana Leecharoen, Ajchara Charoensook
Abstract:
The measured total luminous flux of a linear-shape lamp by using an integrating sphere can be deviated from accurate by the presence of a baffle in the sphere. For the lamp with co-axial alignment, the measured flux decreased when the baffle was longer. But with perpendicular alignment, the trend was opposite. When the baffle was further away from the detector, the measured flux decreased. These were due to the interplay of the non-uniform regions the baffle induced in the sphere.
Keywords:
integrating sphere, total luminous flux, linear-shape lamp, sphere uniformity, spatial correction factor
Download:
IMEKO-WC-2015-TC2-026.pdf
DOI:
-
Event details
Event name:
XXI IMEKO World Congress
Title:

Measurement in Research and Industry

Place:
Prague, CZECH REPUBLIC
Time:
30 August 2015 - 04 September 2015
 Back